Wheel



P. E. HERSCHEL. JR

July 14, 1925.

WHEEL Filed Sept. i7

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or IEOBIA, rumors.

: imam.. fled Se tember 17,1928. Serial 10.68%,188.

Be a known that Plea an, a citizen of .the' United States of America,

g The-object of=my invention istoz-provide l lfwheel especially adapted, for mounting in connection with the axle-and framing of a i 1 rbnd l-havin'g a. hub "or cente rmg ,portion; the -bo'r.ed portion of which is closed" .at'its' outerjend except for "a small open ng to provide for the introduction: of a 'l'ubri:

cant, and {the proportioning and fashioning of a flanged portion of the wheel to over-lie edge of a circular framing; portion, inconjunction with which, the

the margina wheelflis mounted, awlie'reb'y thrusuch .cion-l 0 -struction,the hub bearing; and peripheral conjunction withthe framing; is so closed as thrurwhich the "perforation is entered,

be effective protec foreign substances. g

Another object .of my invention relates to be relatively from .whichismfix I r r clearance opening there-between,' to form 1n con'uncti'on with a suc openingbe on the normal 'ameterof .the herein the ub, an oil pocket.

the-endof'theaitle Another feature of the invention in the fashioning of asheet metal wheel j g. toningplateon relative off-set linesf m l t. eral strengthening;

' Refs" fng o r ew mrniiilg' included inmy. invention.

2- la ti non'2-.2 of Figure a-is a detailed ed .vie'w'of a preferr'ed form of a device or retaining the wheel upon'the end of the axle, and

jFigure 4 is a detailed lan view ofthe same subject matter as 'sclos'ed in Figure'3* x I 7 which constitutes a artof the awn-mower structure andfinsuc framing, 10 refers to a circular'riin member rovided with flange body portion '11; 12 is a centrally with a centrally bore therein described.

tion from other to the frame to .provide a;

ripheral ex ansionof' sure rtion 26 re 'steri,

c i y i h theglaiis In In improved lawn-mower structure, I v amaimmgto secure a-sim is form of attachmenu; of w eels; to the f I: relate the parts'in a manner to produce 2 the minimumof friction in the 'operationof the. v In??? gmachme." To this end igurel' is a front elevat on of a wheel drawingsfiaframin is shown and with a clearanceopening 13; 14 is ra dially disposed arm members connecting [rim member 10 with said'bod portion 12; 1

and 15 is-a frame. extension a apted to supporting more thereto adapted to co-operate with gear members on a wheel"-- hereinafter to be P 1 8' refers nerally to'a wheel comprising a periphera; "flange 19";adapted" when the jv vli ael"=1s' roperly positioned with respect to. m'em er 10 to over-lie said rim member i10. and also the upper edge. of flange 11' thereof said flange 19: bein provided with interim" ly-disposed cog test '20 adapted to arts (not shown). 16 is acutter blades aft and 17 is a gear fixed meshvwithi cog wheel '17 Saidwheelalso includes in its h structure, 'a' hub which is connected with-1 per' by means of spoke members 22.

Referrin particularly to the at ni h-- rtion 21 phera her, 23 in icates a central bore therein-in member 24fixed to the body. portion of the framing by means of set screw 25 is adapted ,to entered-as shown iii-Fig. 2. (the closureportion 26;-the bore :in thejhub is "provided with a clearance; opening. 27

adapted to serve as. a receptacle. orj pocket for .oiL- Ari opening visprovided in 010-,

shaft 24. r

aming" that will v V I have. merel o v 29 witlrn the exterior an we of "hub 21 and anattachine'nt memberLBO adapted toregister with said groove; said attachment member being fixed tolthe framclose which consists of a sheet metal late provided .-with a centrally disposed 'U- ashaft- . alignment with the eentralborein body, 'ory y .tion 12.of the framing within which- I a means of the wheel'to the-fran 'ing wh'ere y the. outer wall of the wheelhub substantially and ioned'ins'eat, 'roportioned and she for. substantial c ose out within a hub groove-and over-lying t e hub to the mini-- mum of contact engagement whereby fric tion between the parts maybe reduced to a,

- as well as t making a and the vframe 1s a umon minimum. The metal of the attachment member is also ofl'set as at 32 for the purpose of reinforcement against lateral straln.

In arranging the wheel with respect to the framing and the shaft 24, the hub is designed to be entered upon the shaft until the end portion of the latter is in alignment with the inner wall projections 33 of the clearance opening 27 whereby a clearance space is left between the end of the shaft and the inner wall of the closure portion 26 of the wheel. This spacing is effected thru the proper placing of the groove 29 upon the hub with respect to the position of the attachment member 30.- In this position also, the flange 19 will be brou ht to over-lie the rim member he flange portion 11 thereof and in such a relationship as to effect complete closure but at the same time provide-clearance there-between so as to avoid friction.

The provisions in my improvement for the sole bearing between the wheel juncture of the grooves in the hubs with the attachment members to serve to reduce friction, and the placing of the only frictional bearing in such acovered position as to prevent the entry of foreign substances thereto, and the spacing of the end of the shaft member on the wheel wall, and the fashioning of the 1 said wheel wall to form an oil pocket adja cent the end of the shaft which facilitates the housing of a considerable quantity of lubricant and is positioned with respect to the shaft so that the centrifugal action of the Wheel will not dislodge the lubricant. It is to these particular features and to the point of relationing the rim and flange members respectively of the framing and the wheel to avoid friction and dislodgement, that my invention is especially directed.

' Having thus described my invention, what I claim as new and desire to secure by Let- I ters Patent of the United States is:

1.. In apparatus of the class described, a frame member, ashaft fixed thereto, a wheel element, a hub-having a bore therein for receiving: the end of the shaft and having an aperture entry to the bore, a groove circumferentially of the hub, its lateral walls serving as athru'st bearing for maintaining the wheel'in proper working relation with respect-to the frame and the shaft, and a yoke member attached to the frame having a running relation with the hub groove and a bearingrelation with its side walls, including arelationing of the frame to vthe hub and the shaft to the frame, to provide relative spacing of the end of the shaft from portion adapted to removably and tele-.

scopically receive the said flange of the frame member therein, a centrally disposed hub extending inwardly from said wheel element provided with a bore in axial ali 'ment with the bore of the frame member or receiving the end of the wheel shaft therein and having a restricted aperture extendi therethrough and communicating'with the said bore, the said hub on the wheel element being provided with a peripheral groove therein. means for locking the wheel element and the wheel frame in assembled position, the said means comprising a yoke secured to the frame and adapted to enter the peripheral 'roove upon the wheel hub, the said yoke-and groove being relatively arranged so as to space the end of the shaft from the adjacent end wall of the wheel hub, thereby orming an oil chamber in the outer end of the bore of saidhub.

3. In a device of the character described having in combination a wheel frame, a peripheral flange upon said frame, a hub centrally mounted upon the frame having an enlarged recess and a restricted bore therein for receivin the wheel shaft, means for rigidly securing theframe to the wheel shaft, a removable wheel element comprising a rim portion adapted to telescopically receive the flange of the wheel frame, a centrally disposed hub extending inwardly from the wheel element and adapted to enter the ,enlarged recess in said frame hub, the hub on the wheel element being provided with a restricted aperture communicating with the bore therein, and provided with a pcripheral groove on the inner end thereof, means for detachably securing the wheel element to said frame, the said means comprising a yoke secured to the frame and adapted to enter the peripheral groove upon the wheel hub, the relatively arranged so as to space the en of the shaft from the end of the hub so as to provide an oil chamber in the outer end of the bore. 7

In testimon whereof I aflix m lAUL E. HERSC signature. EL, J n. K

a wheel frame, a

yoke and the hub being I 

